نتایج جستجو برای: 115 plastic track detectors

تعداد نتایج: 170258  

Journal: :iranian journal of radiation research 0
k. kant department of physics, kl mehta dayanand college for women, faridabad, haryana, india-121 001 s.b. upadhyay department of physics, b.s.a. college, mathura ,u.p. – 281 001 s.k. chakarvarti department of applied physics, n.i.t. kurukshetra, haryana, india-136 119

abstract background: and soils with which it comes in contact. there is dual exposure from radon in water i.e. due toinhalation of the radon released from the water into the ambient air and through ingestion whenwater is used for drinking. as radon contaminated water adversely affects the health, it istherefore fundamental from health and hygiene point of view to measure radium concentrationand...

Journal: :iranian journal of radiation research 0
h.r. vega-carrillo unidad académica de estudios nucleares, universidad autonoma de zacatecas, zacatecas, zac. méxico r. barquero departamento de radiología del hospital universitario rio hortega, valladolid, spain g.a. mercado unidad academica de matematicas universidad autónoma de zacatecas, zacatecas, zac. méxico

background: in high-intensity, mixed and pulsed neutron fields the use of spectrometers or area monitors with active detectors is useless in these conditions neutron measuring devices must have a passive detector. here a passive neutron area monitor with cr39 track detector was designed and the response was calculated. materials and methods: the response of a passive neutron area monitor with c...

Journal: :Atmosphere 2023

Radon is the main source of natural radioactivity, and its measurement considered extremely important in radioprotection, given relationship with occurrence lung cancer. In last two years, measurements this radioactive gas were carried out Lima considering a grid 5 km2 population density to determine number be out. Cellulose nitrate nuclear track detectors exposed bare mode diffusion chamber us...

D. Verma, M. Shakir Khan, M. Zubair,

Background: More than 50% of the total dose received by human beings from all sources of radiation (both from natural and manmade) comes from radon and its progeny which is responsible for lung cancer in many cases. Materials and Methods: In the present study, the measurements have been carried out by using twin chamber dosimeter cups with LR-115 type-II detectors. The value of track ...

2010
D. Wertheim

It has been suggested that 3 to 5% of total lung cancer deaths in the UK may be associated with elevated radon concentration. Radon gas levels can be assessed using CR-39 plastic detectors which are often assessed by 2-D image analysis of surface images. 3-D analysis has the potential to provide information relating to the angle at which alpha particles impinge on the detector. In this study we...

2005
P. Buford Price

Fission track dating has greatly expanded its usefulness to geology over the last 40 years. It is central to thermochronology—the use of shortened fission tracks to decipher the thermal history, movement, and provenance of rocks. When combined with other indicators, such as zircon color and (U–Th)/He, a range of temperatures from 40 ◦C to 400 ◦C can be studied. Combining fission track analysis ...

Journal: :iranian journal of radiation research 0
d. verma department of applied physics, zakir hussain college of engineering & technology, aligarh muslim university, aligarh-202002, uttar pradesh, india m. shakir khan department of applied physics, zakir hussain college of engineering & technology, aligarh muslim university, aligarh-202002, uttar pradesh, india m. zubair department of applied physics, zakir hussain college of engineering & technology, aligarh muslim university, aligarh-202002, uttar pradesh, india

background: more than 50% of the total dose received by human beings from all sources of radiation (both from natural and manmade) comes from radon and its progeny which is responsible for lung cancer in many cases. materials and methods: in the present study, the measurements have been carried out by using twin chamber dosimeter cups with lr-115 type-ii detectors. the value of track density of...

S.B. Upadhyay, K. Kant, S.K. Chakarvarti,

ABSTRACT Background: and soils with which it comes in contact. There is dual exposure from radon in water i.e. due toinhalation of the radon released from the water into the ambient air and through ingestion whenwater is used for drinking. As radon contaminated water adversely affects the health, it istherefore fundamental from health and hygiene point of view to measure radium concentrationand...

Journal: :Journal of environmental radioactivity 2008
H Erramli H D Gogon M A Misdaq T Sauvage C Ramboz

In this work, PIXE experiments were performed for measuring heavy and light elements' (ranging from aluminium to lead) concentrations inside various polluted and unpolluted soils as well as liquid samples collected from different phosphate factory sewers in the El Jadida-Safi Atlantic coastal region (Morocco). In addition, uranium ((238)U) and thorium ((232)Th) contents were evaluated in the sa...

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